Carbureter.



Patented Oct. 15, 1912.

INVENTOR:

ATTORNEY.

E. B. KALEY.

GARBURETER. APPLICATION FILED out 26, 1910.

a srarn arena prion.

ELMER B. KALEY, OF INDIANAPOLIS, INDIANA, ASSIGNOR, 0F ONE-HALF T0 WILLIAM H. THOMAS, 0F INDIANAPOLIS, INDIANA.

CARBURETER.

T 0 all whom it may concern:

Be it known that I, ELMER B. KALn a' citizen of the United States, residing" at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Carbureters; and I do declare the following to be a full,

clear, and exact description of the invention,

reference being-had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to apparatus for supplying explosion engines with explosive mixture, the invention having reference more particularly to the features of con struetion in carbureters which relate to the admission and control of air to be carbureted, and the admission and control of gasolene or similar hydro-carbon wherewith to produce the explosive mixture.

The primary object of the invention is to provide a simple and inexpensive carbureter that will be adapted to operate reliably and economically under varying conditions, a further object being to provide a carbureter adapted to be readily adjusted to suit various constructions of engines and connections.

With the above mentioned and minor objects in view, the inventicgn consists in an improved carbureter comprising a reservoir having novel vaporizing and carbure'ting apparatus therein, the earbureter being pro vided with improved means for regulating the admission of hydro-carbon and air to the carbureting apparatus.

The invention consistsalso in certain novel parts, and in the'combinations and arrangements of parts, as hereinafter particularly described and claimed.

Referring to the drawings, Figurel is a vertical central sectional view of the improved earbureter constructed substantially in accordance with the invention; Fig. 2, an elevation of the carburetor broken away in parts to the plane of the line A A in Fig. 1; Fig. 3, a fragmentary;sect-ion also on the plane of the line A A; Fig. 4, a section. on the line B Bin Fig. 1; Fig. 5, a top plan of the carburetor; Fig. 6, an inverted plan of the topof the reservoir; Fig. 7, a fragmentary section on the plane of the line C O in Fig. l; and Fig. 8, a section of the mixing Specification of Letters Patent.

Patented Get. 115, 1912.

Application filed October 26, 1910. Serial No. 589,094.

tube and auxiliary air valve on the plane of the top being fitted upon the side wall and adapted tobe turned adjustablyl thereon be fore being secured, to suit various arrangements of pipe connections or available space in which to operate the carbureter. The

under side of the top has a curved U-shaped v mixing tube body 3 thereon in which is a mixing chamber 4 that has two orifices 4E and 4:" in the top 2. The lowermost portion of the tube body has a carbureting tube 5 thereon which extends downward through the interior of the reservoir and has a shoulder 6 thereon in contact with the inner side of the bottom 1', the tube 5 extending through a suitable aperture in the bottom and ham ing a smooth portion 7 fitting closely in the aperture to prevent leakage of the liquid hydro-carbon from the reservoir. The tube 5 extends beyond the bottom 1' and has an externally threaded end portion 7 on which is a nut 8 that is screwed up against the bottom of the reservoir to hold the top 2 on the wall 1 and to secure the tube firmly, the latter in some cases having a pipe connection Sthereon. The interior of the carbureting tube has coarse screw-threads 5 therein which constitutes a spiral rib for producing gyratory motion of the air passing through the tube to the mixing chamber at. The side wall 1 of the reservoir has a valve-chest 10 thereon and interiorly in communication therewith, and the lower or inlet portion of the valve chest is provided with screwthreads llfor connecting a fuel supply pipe thereto, the bottom of the valve-chest being provided with a valve seat 12 on which a valve 13 operates for regulating the admission of gasolene or the like to the reservoir, the valve having a guide-stem 14 which is guided movably in a cap 15 inserted in the top of the valve'cliest, the guide stem being provided with two opposing collars 1G and 16 for controlling the valve. A lever 17 provided with trunnions L8 is mounted on two center-bearing screws 19 and 19 mounted in the opposite sides of the valve-chest, and

1 has screw threads 23 therein, and a secondher or cylinder of an engine,

on a

ary mixing time 2 1 is provided with external screw threads 25 to engage the threads 23, the tube being adapted to be turned more or less as may be desired and then locked by means of a lock-nut 26 thereon which is screwed into contact with the top 2. The secondary mixing tube is provided with screw-threads 27 or may be otherwise adapted to be connected with the explosion chamthe tube havg a regulating valve 28 therein mounted shaft 29 which is provided with an operating arm 30, for regulating the ad mission of explosive mixture to the engine. The tube 24: has a side branch 31 on which is a valve chest 32 preferably having a bushing 33 in its lower portion on which is seated a valve 34 provided with a guide stem 35, inserted in a hollow guide 36which is screwed into the top of the valve-chest and provided with a lock-nut 37 that is seated upon the valve-chest, a spring 38 being seated upon the valve 34 and against the inner end of the guide 36 for normally holding the valve to its seat, the tension of the spring being adjusted by turning the guide 36 to suit requirements.

In order to regulate the admission of air to the mixing tube a valve-chest 39 is provided which has a flange 1-0 thereon that is seated upon the top 2 of the reservoir at the inlet orifice L and secured by suitable screws 4-1, the flange having holes 42, and the top 2 having holes 42, to receivethe screws. The valvechest 39 preferably has a bushing 13 in its lower portion, and a valve 4 L is provided to cotiperate with the upper end of the bushing for regulatingthe admission of air, the valve being arranged between one end of a hollow guide 45 and the bushing for limiting the lift of the valve, the guide being screwed into the top of the valve-chest and provided with a lock-nut 46 for securing it in position when adjusted. The valve is provided with an operating stem 47 which extends through the hollow guide and is provided with an operating head 48 on its outer end and a spring 49-,is seated between the head and the guide 15 and adapted to normally hold the valve in open position. The valve-chest 39 is provided with a fulcrum arm 50 having a pivot pin 51 on which is mounted a lever 52 that is connected to the head 48 by means of a pivot '53, thus enabling the oper-. ator to close the valve 44 at will to prevent admission of the air temporarily. l

The carbureting tube 5 preferably has'a boss 54 on its outer side through which a feed tube 55 is inserted which extends into the carbureting tube and has a nozzle-56 on its upper inner extremity, the feed tube are tending upward through the wall of the tube 5 at an oblique angle thereto, The lower outer end portion of the feed tube is provided with a valvc-seat 57 in the wall thereof, below the level of the gasol ne in the reservoir, through which the gasolene is admitted to the tube, the lower end of the tube having a cleaning plug 58 therein. A feed valve-stem'59 has a threaded portion 59 which is screwed into and extends through the top 2 of the reservoir, and the innerlend of the stem has a needle valve 60 h n adapted to eodperate with the valve-seat 57 for regulating the flow of the liquid fuel or gasolene through the feed tube, the stem 59 being guided in a boss 61 with which the exterior of the tube body 3 is provided. The threaded portion 59' has a lock-nut 62 thereon which is seated upon a boss 63 formed upon the top 2.

In practical use the hydro-carbon, such as gasolcne, is admitted into the reservoir when the valve 13 is open, and as will be understood the float rising with the liquid closes the valve when the liquid is at the level of the top of the nozzle 56. The suction of the engine draws air through the carburet-ing tube 5 intothe mixing chamber 4: and the air in passing takes up the hydrocarbon, the flow of which is regulated by the immersed valve 60, from the nozzle 56 and atomizes it more or less in its passage to the mixing chamber from which the mixture is drawn through the secondary mixing tube,

24 to the engine, the valve 44 usually being manually closed when starting the engine, and the valve 34- held in closed position by its spring until the engine makes a few rev0- lutions and increases the suction so as to open the valve 34 when also the valve 44 may be opened by its spring 49 on relehsing the lever 52, to admit more air. The tension of the springs 38 and 49 are to be ad j usted to suit conditions in operation, as will be understood, and also the combined guide and stop 45 is to be adjusted according to circumstances. The lever 52 may beeperated so as to either wholly or partially close the valve 4.4: at any time during operation that it may be desirable to reduce the admission of air to the carburetor.

Having thus described the invention, what is claimed as new isv 1. A carburetor including a bowl, a top seated upon the bowl, a mixing tube in the bowl and having an inlet and an outlet oria top 1n communication with said inletorifice,

a valve in the valve-chest a secondary mixing tube having an air-inlet secured to said top in communication with said outlet orifice, a valve-chest on said secondary mixing tube and a valve therein, and a carbureting tube connected to the mixing tube and extending through the bowl, the carbureting' tube havin a feed-duct in the wall thereof.

2. A caifioureter including a bowl, a top seated upon the bowl, a mixing tube in the bowl and extending from said. top downward and thence upward to the top, 'said tube'having an inlet and an outlet orifice in said top, a secondary mixing tube having an air inlet end screwed into the outlet orifice of the mixing tube, a lock-nut adjustable on said end of the secondary mixing tube and seated on said top, a valve chest on the secondary mixing tube, a valve in the valvechest, and a carbureting tube connected to the under side of the mixing tube and extending through the bowl, the earbureting' tube having a feed-duct in the wall thereof. 3. A. carbureter including a bowl, :1 top seat-ed upon the bowl, a mixing tube in the bowl and having an inlet and an outlet orifice in saidtop, a valveohest secured to said top in communication with said inlet orifice and having a valve-seat therein and a fulcrumarm thereon, a hollow guide adjustably secured in the wall of the valve-chest, a valve in the valve-chest opposite the valve-seat, and having a stem that extends through and is movable inthe guide, a head on the outer 1 end of said stem, a spring under compression between the head and the outer end of the guide to normally hold the valve to the guide, a lever pivotally connected to the fulcrum-arm and also to said head for moving the valve from the guide to or toward the valve-seat, a secondary mixing tube connected with said outlet orifice, and a carbureting tube connected to said mixing tube and having a feed-duct in the wall thereof.

4. In a carbureter, the combination of a bowl, a top seated upon the bowl, a mixing tube in the bowl having inlet and outlet orifices in said top, the wall of said tube having a boss on the exterior thereof, a

carbureting tube connected at one end with said mixing tube and extending through and secured to the bottom of said bowl, the inner inserted in the wall of said carbureting tube' having. screw-threads thereon extending throughout the length thereof, a feed-tube inserted in the wall of said carbureting tube and extending obliquely through and across said screw-threads toward said mixing tube,

said 'feed'tube extending downward below said boss and having a valve-seat in the wall thereof under said boss, and a valve-stem screwed through said top and guided in said boss, said stem having a valve on its inner end to cooperate with said valve-seat.

In testimony whereof, I afiix my signature in presence of two witnesses.

' ELMER B. KALEY. Witnesses:

WM. STEIN, PAUL J OHNSOJSL, 

